Planning for Vacuum Line Replacement
#17
Last edited by Zerpersande; 02-11-2018 at 11:30 AM. Reason: I’m wrong.
#18
Rainman
Rennlist Member
Rennlist Member
^^ sounds like you're not talking about a 944 when reviving this 10 year old thread.
all 944/968 models have the AOS on the back of the engine by the bellhousing.
if you remove the intake manifold the AOS is super easy to get off.
and when the 3 (2 external and 1 internal) seals cost $5 and replacing the whole AOS costs $120+, what's better to do?
all 944/968 models have the AOS on the back of the engine by the bellhousing.
if you remove the intake manifold the AOS is super easy to get off.
and when the 3 (2 external and 1 internal) seals cost $5 and replacing the whole AOS costs $120+, what's better to do?
#19
^^ sounds like you're not talking about a 944 when reviving this 10 year old thread.
all 944/968 models have the AOS on the back of the engine by the bellhousing.
if you remove the intake manifold the AOS is super easy to get off.
and when the 3 (2 external and 1 internal) seals cost $5 and replacing the whole AOS costs $120+, what's better to do?
all 944/968 models have the AOS on the back of the engine by the bellhousing.
if you remove the intake manifold the AOS is super easy to get off.
and when the 3 (2 external and 1 internal) seals cost $5 and replacing the whole AOS costs $120+, what's better to do?
#20
Intermediate
Three seals? Are you including the oil cap seal in those three? Or is there another seal I am not aware of?
^^ sounds like you're not talking about a 944 when reviving this 10 year old thread.
all 944/968 models have the AOS on the back of the engine by the bellhousing.
if you remove the intake manifold the AOS is super easy to get off.
and when the 3 (2 external and 1 internal) seals cost $5 and replacing the whole AOS costs $120+, what's better to do?
all 944/968 models have the AOS on the back of the engine by the bellhousing.
if you remove the intake manifold the AOS is super easy to get off.
and when the 3 (2 external and 1 internal) seals cost $5 and replacing the whole AOS costs $120+, what's better to do?
#23
Rainman
Rennlist Member
Rennlist Member
doubtful, there is no factory replacement part for that seal and no parts supplier sells that seal specifically.
it just happens that a common generic industrial O-ring is exactly the right size to replace the one originally used.
an o-ring that diameter might be for one of the 944 variant throttle bodies but those are thicker.
it just happens that a common generic industrial O-ring is exactly the right size to replace the one originally used.
an o-ring that diameter might be for one of the 944 variant throttle bodies but those are thicker.
#24
Intermediate
Thanks for the clarification. I am in the middle of a vacuum re-seal project right now. I read that some people were purchasing packs of 10 seals from McMaster Carr and selling individual seals. Does anyone have a seal to sell?
#25
Rennlist Member
I'm looking to work on the vacuum lines on mine as well. Lindsey kit has been ordered. But does anyone have the PN's for the large lines so I can add those to my Pelican basket?
#26
#27
Rennlist Member
Thanks @mikehayes, but my bigger problem is that I'm not sure which "big hoses" we're talking about to even find them on the diagram. (You'll have to forgive me. I'm learning auto maintenance as I go here.)
Are they the Front and Rear hoses from the idle control valve?
944 110 217 00 - (front)
944 110 214 01 - (rear)
Are they the Front and Rear hoses from the idle control valve?
944 110 217 00 - (front)
944 110 214 01 - (rear)
#28
Yes, I believe you'll need those, as well as some others. Chalt made a nice diagram the other day: https://rennlist.com/forums/924-931-...86-944-na.html maybe it'll help you sort them out. I'm honestly not very familiar with what's under the intake, so don't quote me, but I think you need these also:
Edit: Looks like 19 came on '87s and 19A came on '88s. Order accordingly.
Edit: Looks like 19 came on '87s and 19A came on '88s. Order accordingly.
#29
Rennlist Member
Huh... "Well there's your problem!"
Pulled the intake manifold off the other night and found that the original plastic vacuum lines had gotten down onto the engine and had basically melted into nothing. The various ends weren't even connected. Replaced it all with new silicon from Lindsey Racing and she should run a lot smoother, although it was too late to fire her up by the time I got it all put back together...
There pretty much wasn't a single connection to the throttle body after they'd all melted.
Pulled the intake manifold off the other night and found that the original plastic vacuum lines had gotten down onto the engine and had basically melted into nothing. The various ends weren't even connected. Replaced it all with new silicon from Lindsey Racing and she should run a lot smoother, although it was too late to fire her up by the time I got it all put back together...
There pretty much wasn't a single connection to the throttle body after they'd all melted.
#30
Rainman
Rennlist Member
Rennlist Member
just an FYI to anybody else reading this thread,
you can get suitable replacement material for the 3mm hard black line (that connects all the soft tees and elbows) at any auto parts store as 1/8" line.
slightly larger than 3mm means it will be a nice snug fit in the old rubber joints.
you can get suitable replacement material for the 3mm hard black line (that connects all the soft tees and elbows) at any auto parts store as 1/8" line.
slightly larger than 3mm means it will be a nice snug fit in the old rubber joints.